This reverts commit 460f39e6.

For one, it had started to make bitmap checksum equality check in
svx/qa/unit/XTableImportExportTest.cxx, CppunitTest_svx_unit, fail most of the
time in macOS --disable-dbgutil builds, as the bitmap checksum is now computed
also over padding bytes containing random values (but --enable-dbgutil
initializes those bytes).  And why would fixing tdf#116213 for Windows require
touching the macOS-specific code, anyway?

For another, tdf#116213 comments 6 and 7 report further problems that are likely
linked to this commit.

Change-Id: I3e158813ab89a1ead3780abbf6b120ec52660231